Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 2771: When some ice cubes are added to a glass of warm water, the glass is cooled by a process of Options:
  A) conduction only
  B) convection only
  C) conduction and convection
  D) conduction and radiation
  E) radiation only
  Show Answer
  The correct answer is C .
• Question 2772: If u is the object distance and v the image distance, which of the following expressions gives the linear magnification produced by a convex lens of focal length f? Options:
  A) ^u/_f - f
  B) ^u/_v + f
  C) ^v/_f + 1
  D) ^v/_f - 1
  Show Answer
  The correct answer is D .
• Question 2773: When a positively charged rod is brought nearer the cap of a positively charged electroscope, the leaves divergence will Options:
  A) be induced
  B) converge
  C) diverge
  D) remain constant
  Show Answer
  The correct answer is C .
• Question 2774: A concave mirror has a radius of curvature of 36cm. At what distance from the mirror should an object be placed to give a real image three times the size of the object? Options:
  A) 12cm
  B) 24cm
  C) 48cm
  D) 108cm
  Show Answer
  The correct answer is B .
• Question 2775: Which of the following is TRUE of light and sound waves? Options:
  A) they both transmit energy
  B) they both need a mediumfor propagation
  C) they are both transverse waves
  D) their velocities in air are equal
  Show Answer
  The correct answer is A .
• Question 2776: Metal cables are used as telephone wires because Options:
  A) they are cheap
  B) they are sourced locally
  C) the speed of sound in them is very low
  D) the speed of sound in them is very high
  Show Answer
  The correct answer is D .
• Question 2777: The energy in the nucleus of atoms produce heat which can be used to generate Options:
  A) Kinetic energy
  B) Mechanical energy
  C) Electrical energy
  D) Potential energy
  Show Answer
  The correct answer is A .
• Question 2778: A boy ran a distance of 200m in 24s. His average speed was 8.3ms^-1. Which of the following is correct about the units in which the statements above are expressed? Options:
  A) All the units are fundamental.
  B) All the units are derived
  C) All the units except one are S.I units
  D) Two of the units are fundamental and one derived.
  E) None of the units is S.I units.
  Show Answer
  The correct answer is D .
• Question 2779: Why do soldiers march disorderly while crossing a bridge? Options:
  A) To prevent resonance on the bridge
  B) To set the bridge into resonance
  C) To make the b ridge collapse
  D) To spread their weight evenly on the bridge
  Show Answer
  The correct answer is A .
• Question 2780:

  

  In the diagram above, MN is perpendicular to ON and MR what is the difference between the moment about N of the force of 20 Newtons applied along MP an its moment about 0

  Options:
  A) Zero
  B) 0.2N.m
  C) 0.4N.m
  D) 0.8N.m
  E) 0.6N.m
  Show Answer
  The correct answer is A .